Wrist worn mobile alcohol and offender monitoring system

ABSTRACT

The present disclosure includes a body-worn alcohol detection device. The device includes a housing comprising an electronics module and an alcohol detection module. The device further comprises a strap for securing the housing to a limb of the user. The electronics module includes a processor and a communication module, and the alcohol detection module includes an alcohol detection sensor, a sample collection device and a biometric camera for capturing an image of the inside of the user&#39;s mouth.

CROSS REFERENCE TO RELATED APPLICATIONS

This application is a national stage filing under 35 U.S.C. 371 ofPCT/US2016/020855, filed 4 Mar. 2016, which claims the benefit ofProvisional Application No. 62/131,378, filed 11 Mar. 2015, thedisclosure of which is incorporated by reference in its/their entiretyherein.

TECHNICAL FIELD

The present disclosure relates to the field of alcohol monitoring. Morespecifically, the present disclosure relates to the field of mobilebreath alcohol monitoring.

BACKGROUND

Alcohol monitoring plays an important role in a variety of fields,ranging from monitoring the use of alcohol for individuals working inoccupations, such as healthcare or transportation, where alcohol anddrug testing is a regular event associated with monitoring releasedoffenders with alcohol use restrictions and participants inrehabilitation programs.

Alcohol presence can be tested through a variety of methods, includingtesting urine samples, blood samples, transdermal testing and breathtesting. Breath testing often includes analyzing saliva included inexhaled breath for indicators of alcohol. Both blood and urine testingcan be invasive and present challenges to perform quickly or in a publicsetting. Transdermal monitoring can be expensive and may result ininadvertent alcohol detection or false positives.

Breath alcohol testing is commonly used in a multitude of applicationsbecause of its convenience and low cost. Typically, breath alcoholtesters require a person to blow a sample of breath into a testingdevice. Within an electrochemical cell, ethanol present in the breathsample is oxidized to acetic acid by the atmospheric reduction of oxygenand converted into an electrical current by a microprocessor containedin a testing device. A person's alcohol usage is determined based upon acomparison between the electrical current calculated from the alcoholcontent in their breath to predetermined values that are stored in thetesting device.

Breath alcohol testing presents several challenges. For example, withmany current breath alcohol testers, there is no way to confirm thelocation or identity of the individual completing the test with thetesting device alone. Further, even with breath alcohol testing devicesthat may include cameras peripherally connected to the testing devicefor capturing an image of the person's face, the image is often recordedand visual inspection is used to confirm the individual's identity afterthe test has concluded. At times, when the identity of a person isverified by an image of their face, the person can substitute aphotograph or use another mechanism to tamper with the identificationmethod. An improved breath alcohol testing system would be welcomed.

SUMMARY

The present disclosure provides both a handheld and a wrist-worn alcoholdetection device. The alcohol detection device provides new methods forconfirming the identity of the person providing a sample to the alcoholdetection device. The present disclosure provides several advantagesincluding, but not limited to, the identification and confirmation of auser's identity without the need for manual or visual inspection in acompact, an integrated device, and concurrently determining the presenceof alcohol contained in the breath of the user. Peripherally connectedsystem components, such as cameras or other biometric sensors (i.e.,fingerprint), would not be required to authentic or confirm the identityof the user. This minimization of system components reduces the formfactor of the testing device, decreases inaccuracies that may becaptured or reported, and lessens the probability that the testingdevice is tampered.

Specifically, the present disclosure includes a body-worn alcoholdetection device. The device includes a housing comprising anelectronics module and an alcohol detection module. The device furthercomprises a strap for securing the housing to a limb of the user. Theelectronics module includes a processor and a communication module, andthe alcohol detection module includes an alcohol detection sensor, asample collection device and a biometric camera for capturing an imageof the inside of the user's mouth.

In another aspect, the present disclosure includes an alcohol detectiondevice. The device comprises a housing comprising an electronics moduleand an alcohol detection module. The electronics module includes aprocessor and a communication module. The alcohol detection moduleincludes an alcohol detection sensor and sample collection device and abiometric camera for capturing an image of the inside of a user's mouth.

In another aspect, the present disclosure includes a body-worn alcoholdetection device. The device includes a housing comprising anelectronics module and an alcohol detection module and a strap forsecuring the housing to a limb of a wearer. The electronics moduleincludes a communication module. The alcohol detection module includesan alcohol detection sensor and a sample collection device. The samplecollection device includes at least one light source and at least onelight detector.

In another aspect, the present disclosure includes an alcohol detectiondevice. The device includes a housing comprising an electronics moduleand an alcohol detection module. The electronics module includes acommunication module. The alcohol detection module includes an alcoholdetection sensor and sample collection device. The sample collectiondevice includes at least one light source and at least one lightdetector. Optionally, the alcohol detection device includes a remoteprocessing device that alerts a user through at least one of thefollowing communication means: SMS message, telephone, or email, toprovide a sample to the device.

BRIEF DESCRIPTION OF DRAWINGS

The following figures provide illustrations of the present invention.They are intended to further describe and clarify the invention, but notto limit scope of the invention.

FIG. 1 is an exemplary mobile alcohol detection device.

FIG. 2 block diagram of mobile alcohol detection device and a server.

FIG. 3 is an exemplary reflective tube.

FIG. 4 is an exemplary flow chart for using a mobile alcohol detectiondevice.

FIG. 5 is an exemplary flow chart for detecting tamper with a reflectivetube.

Like numbers are generally used to refer to like components. Thedrawings are not to scale and are for illustrative purposes only.

DETAILED DESCRIPTION

FIG. 1 is an exemplary mobile alcohol detection device 100. Mobilealcohol detection devices can take several forms, including handheld andbody-worn devices. Device 100 is a body-worn device. More specifically,device 100 is designed to be worn on the wrist of a user. Device 100includes strap 102, housing 104, alcohol detection module 106, whichincludes an alcohol detection sensor, a sample collection device and abiometric camera for capturing an image of the inside of the user'smouth. Device 100 further includes a user interface, including both adisplay 108 and buttons 110. Display 108 may include one or moredifferent types of devices for presenting information (e.g.,instructions to operate device 100) to a user. Display 108 may includeany number of visual (e.g., liquid crystal display or light emittingdiode) or audible (e.g., one or more speakers) feedback devices. Buttons110 provide a mechanism to interact with device 100 and/or respond toinstructions presented on the display 108. Buttons 110 may be physicallypresent on device 100 or contained within display 108 through soft ortouch interaction. Placement of the alcohol detection module 106,display 108, and buttons 110 is exemplary and other locationconfigurations or arrangements on the mobile alcohol detection 100 arewithin the scope of the present disclosure.

While device 100 is shown as a wrist worn device, device 100 can also bea handheld device, or can be configured in any other way consistent withthe present disclosure. Handheld device may not include the samecomponents as a wrist worn device 100. For example, a handheld device100 may not include strap 102.

FIG. 2 shows a block diagram of an alcohol detection device 200. Device200 includes electronics module 210. Electronics module 210 includesprocessor 212, power source 282, memory 214, input/output device 216,camera 280 and communication interface 232. Device 210 further includesalcohol detection module 220. Alcohol detection module 220 includes asample collection device 270 and an alcohol sensor 272.

While the illustrated alcohol detection device 210 includes a variety ofmodules and components within the electronics module 210 and alcoholdetection module 220, a device within the scope of the present inventionmay include a subset of the described modules and components. A devicewithin the scope of the present invention may have additional modulesand components. A device within the scope of the present invention mayhave a varying arrangement of modules and components. For example, thealcohol detection module 220 may be part of electronics module 210.

Processor 212 may include, for example, one or more general-purposemicroprocessors, specially designed processors, application specificintegrated circuits (ASIC), field programmable gate arrays (FPGA), acollection of discrete logic, and/or any type of processing devicecapable of executing the techniques described herein. In someembodiments, processor 212 (or any other processors described herein)may be described as a computing device. In some embodiments, memory 214may be configured to store program instructions (e.g., softwareinstructions) that are executed by processor 212 to carry out thetechniques described herein. In other embodiments, the techniquesdescribed herein may be executed by specifically programmed circuitry ofprocessor 212. Processor 212 can perform a variety of functions andcontain a variety of modules. For example, processor 212 may include animage capture module 222, a location module 224, a comparative module226 and a tamper module 228.

Image capture module 222 interfaces with camera 280 to capture andprocess images of the inside of the user's mouth. Image capture module222, as managed by the processor 212, may transmit and receive commandsto 1) trigger camera 280 to capture an image and 2) perform imageprocessing techniques on a captured image from camera 280 such ascalibration, normalization, cropping, classification, feature or patternextraction, color correction, gray scaling, or projection. Various imageprocessing techniques may be used to place the captured image into acommon or standardized format for ease of comparison to other capturedimages, which will be described in further detail with respect to theoperation of the comparative module 226. For example, image capturemodule 222 may receive a captured image from camera 280 that is 540×540pixels and through cropping image processing techniques may reduce thecaptured image to 320×320 pixels. Other image processing may beperformed on the image once captured and methods to enhance or modifywould be apparent to one of skill in the art.

Location module 224 captures location information related to thelocation of the device 200. Such location information may includeproximity location or absolute location information or both. Forexample, proximity location information may include informationindicating that the device 200 is within a certain proximity of anotherdevice. An example of such information occurs when device 200 istethered through radio frequency (RF) or some other mode ofcommunication to a stationary unit, such as a base station permanentlyinstalled in a location such as a person's residence. When device 200 isin communication with the base unit, the location module providesproximity location information indicating that the device 200 is withina pre-defined radius of the base station such as described in commonlyowned and assigned U.S. Pat. No. 6,998,985, which is hereby incorporatedby reference in its entirety. Absolute location information can indicatewhere device 200 as defined geographically. This information can begenerated using location technologies such as components receivesatellite signals and determine location using, for example, GPS or theGlobal Navigation Satellite System (GLONASS) such as described incommonly owned and assigned U.S. Pat. No. 6,853,304, which is herebyincorporated by reference in its entirety. A location module may useother location technologies such as triangulation using local WiFisignals or other known location technologies to estimate location of thedevice 200, and thereby the location of the person wearing or using thedevice.

Comparative module 226 can be used to compare an image of the inside ofa user's mouth captured by camera 280 to a stored image for that user toconfirm the user's identity. In some embodiments, device 200 may alsoinclude a second camera configured to capture an image of a user's facewhile the user is providing a sample to the sample collection device.One or both of the captured image from inside of the user's mouth or thecaptured image of the user's face can be compared with a reference imageby comparative module 226 to confirm the identity of the user. In oneexample, the reference image may be stored on the device 200 asbiometric data 230 in memory 214. In an alternate embodiment, a capturedimage, whether of the inside of a user's mouth or of a user's face canbe transmitted to a remote processing device, such as a server 260, andthe server can confirm the identity of the user by comparing thecaptured images to reference images stored as biometric data 250 inmemory 234.

Tamper module 228 can detect tamper with the device 200. For example,tamper module 228 may be used to transmit a signal, such as an infraredsignal, through a strap on the device and receive the signal on theother end of the strap such as described in commonly owned and assignedU.S. Pat. No. 6,853,304. If the signal is not received, the tampermodule 228 may send an alert the user interface 218 and/or to a remoteserver 260 to indicate that device 200 has been tampered with. Tampermodule 228 may also detect whether a user is using the correct tube,straw or other mechanism to provide a sample to sample collection device270 by detecting light that is reflected from device 200, through astraw, tube, or other sample collection device and back to receptors ondevice 200. The use of a reflective sample collection device 270 ensuresthat the user's mouth is accurately aligned with camera 280, so thatcamera 280 can capture the desired features within a user's mouth.Further, reflective sample collection device 270 ensures that there is acontinuous physical connection between the mouth of the user providing asaliva sample and the camera 280 so that a substitute saliva samplecannot be provided to the device 200 in an attempt to fool the device200.

Power source 282 can be used to provide power to any component of device200 that requires power. Power source 282 may be a disposable batterysuch that device 200 is designed to be disposed of once power source 282is depleted. In another embodiment, power source 282 may be arechargeable battery, such as a lithium-ion or nickel-cadmium batterythat may hold its charge for a period of time and may be recharged by auser upon depletion, on a regular schedule or as necessary. Power source282 may also be primarily or ancillary provided by energy harvestingmeans such as solar, thermal, or electromagnetic. As an example, device200 may include circuitry in the form of antennae and capacitors tocapture electromagnetic radiation, convert to measurable signals (e.g.,current or voltage), and store the signal in a capacitor orsuper-capacitor device to provide power for the components and modules.

Memory 214 is used to store information related to the device 200, theuser, and other information necessary for device 200 to adequatelymonitor the user. For example, memory 214 may store biometric data 230related to a user to whom the device 200 is registered. Biometric data230 may include one or more images of a user's face, oral, and dentalcharacteristics. Facial images may include landmarks or features foridentifying a user's face. Position, size, and/or shape of the eyes,nose, cheekbones, lips, and jaw may be used to biometrically identify auser by facial features. Other anatomical features of the face may alsoby captured and analyzed in the present disclosure such as the shape orlocation of veins. One or more images of the mouth may include position,size, and/or shape of the tongue, soft or hard palate, oropharynx,tonsils, or uvula. Other anatomical features of the mouth may also becaptured and analyzed in the present disclosure. One or more dentalimages to identify a user may include position, size, and/or shape ofthe gingival tissue or teeth. Memory 214 may also optionally storetemperature data as a scalar or a range of values (e.g., minimum tomaximum) associated with the breath or anatomical feature of the user.Such biometric data 230 can be reference images. In another embodiment,biometric data can be specific reference points that are compared toreference points gleaned from an image captured by device 200 to confirmthe identity of a user of device 200. Memory 214 may include anyvolatile or non-volatile storage elements. Examples may include randomaccess memory (RAM) such as synchronous dynamic random access memory(SDRAM), read-only memory (ROM), non-volatile random access memory(NVRAM), electrically erasable programmable read-only memory (EEPROM),and FLASH memory.

Camera 280 may be a small camera integrated into the face of device 200such that camera 280 is aligned to capture an image the inside of auser's mouth during or before or after a user providing a saliva sampleto sample collection device 270. In some embodiments, camera 280 isaligned to capture an image at the end of a tube or straw through whicha user is required to provide a sample. Tube or straw can be configuredto be securely connected to device such that the misalignment or misuseof the tube or straw is indicative of tamper of the device 200. Camera280 may be Charge Coupled Device (CCD) or Complementary Metal-OxideSemiconductor (CMOS) varieties, color sensing devices or the like. Anexample of an image sensor for camera 280 is S55K9A1-HD 1/9″ 1.4 .mu.mBSI pixel image sensor available from Samsung of Samsung Town, Seoul,South Korea.

Alcohol detection module 220 can include a variety of components,including sample collection device 270 and alcohol sensor 272. Samplecollection device 270 is a device or component that serves as aninterface through which a user provides a breath or saliva sample,and/or is a receptacle into which a user provides a breath or salivasample. Sample collection device 270 is mated to alcohol sensor 272 sothat alcohol sensor 272 can determine whether the sample provided to orthrough sample collection device 270 includes indications of alcohol,which may be used to estimate blood alcohol content (BAC). When a userprovides a breath sample through the tube to the sample collectiondevice 270 any ethanol present in the breath is oxidized to acetic acidat the anode of the alcohol sensor 272. At the cathode of the alcoholsensor 272 atmospheric oxygen is reduced, with an overall reaction ofoxidation of ethanol into acetic acid and water. The reaction producesan electrical current which is measured by the alcohol sensor 272 andsent to the processor 212. Processor 212 compares the measuredelectrical current to data stored in memory 214 to determine and/orestimate the BAC of the device 200 user. Alcohol sensors 272 that useother techniques to detect the presence of alcohol (i.e., withoutoxidation) may also be used. The alcohol detection module 220 may alsoinclude a sensor to record the temperature of the breath sample.Processor 212 compares the recorded temperature to data stored in memory214 to determine variation upper or below an expected value. An exampleof a temperature sensor for alcohol detection module 270 is LM35DZ LM35Centigrade Temperature Sensor IC from National Semiconductor ofLewisville, Tex.

Server 260 is an example of a remote server that can be in communicationwith alcohol detection device 200. Server 260 includes memory 234,processor 242 and communication interface 252. Server 260 may operatewithin a local network or be hosted in a Cloud computing environment.Communication interface 252 can communicate with device 200 through avariety of types of networks 240, including WiFi, cellular, Bluetooth,Bluetooth low energy, or the like. Memory 234 can include a variety ofinformation, such as device history information, enrollment informationfor a user of device 200, biometric data 250 for a user of device 200,historic location or other device status information, device repairhistory, and rules or other monitoring restrictions associated with auser of device 200. Biometric data 250 may contain the same data as wasdescribed for biometric data 230 of the device 200. Processor 242 can beused to process information related to device 200. For example, in oneembodiment, processor 242 may do comparative analysis, comparing acaptured image to a reference image or comparing data mined from acaptured image to reference data for a particular user. Processor 242may include, for example, one or more general-purpose microprocessors,specially designed processors, application specific integrated circuits(ASIC), field programmable gate arrays (FPGA), a collection of discretelogic, and/or any type of processing device capable of executing thetechniques described herein. In some embodiments, processor 242 (or anyother processors described herein) may be described as a computingdevice. In some embodiments, memory 234 may be configured to storeprogram instructions (e.g., software instructions) that are executed byprocessor 242 to carry out the techniques described herein. In otherembodiments, the techniques described herein may be executed byspecifically programmed circuitry of processor 242. Memory 234 mayinclude any volatile or non-volatile storage elements. Examples mayinclude random access memory (RAM) such as synchronous dynamic randomaccess memory (SDRAM), read-only memory (ROM), non-volatile randomaccess memory (NVRAM), electrically erasable programmable read-onlymemory (EEPROM), and FLASH memory

In some configurations, when device 200 detects tamper, indication ofalcohol, or any other status or action requiring an alert, device 200may signal both a local alert by providing such an alert to userinterface 218 to be displayed to a user. Device 200 may also, orinstead, transmit an alert to server 260 to provide externalnotification of an incident. External notification may includenotification of a monitoring database or monitoring center, emergencyhealth professionals, law enforcement, parole officers or any otherdesignated recipient of an alert or notification.

Input/output device 216 may include one or more devices configured toinput or output information from or to a user or other device. In someembodiments, the input/output device 216 may present a user interface218 where a user may configure the operation of or receive instructionsfrom the device 200. For example, the user interface 218 may include adisplay screen for presenting visual information to a user. In someembodiments, the display screen includes a touch sensitive display. Insome embodiments, a user interface 218 may include one or more differenttypes of devices for presenting information to a user. The userinterface 218 may include, for example, any number of visual (e.g.,display devices, lights, etc.), audible (e.g., one or more speakers),and/or tactile (i.e., buttons) feedback devices. In some embodiments,the input/output devices 216 may represent one or more of a displayscreen (e.g., a liquid crystal display or light emitting diode display)and/or a printer (e.g., a printing device or component for outputtinginstructions to a printing device). In some embodiments, theinput/output device 216 may be configured to accept or receive programinstructions (e.g., software instructions) that are executed by theprocessor 212 to carry out the embodiments described herein.

Communication interface 232 can communicate with server 260 through avariety of types of networks 240, including WiFi, cellular, Bluetooth,Bluetooth low energy, or the like.

FIG. 3 is an exemplary reflective tube 300. In some embodiments,reflective tube may be used to ensure a continuous connection betweenthe mouth of a user providing a sample and the device described herein.Further, it ensures the tube is of the proper dimensions to allow acamera in the device to capture an image of the user's mouth. Tube 300includes several layers including hollow channel 304, interior layer302, film layer 310 and exterior layer 303. Embedded in film layer 310are optic inputs 306 and optic outputs 308 that are aligned with lightsources from the tamper module of an alcohol detection device asdescribed herein. The tube is constructed in multiple layers. The outerlayer is a protective covering made from opaque material, such as highdensity polyethylene or polyvinyl chloride, to hide the internalconstruction. Inside the outer layer are multiple fiber optic lightguide pipes running parallel to the length of the tube assembly, andarranged in a circular array around the diameter of the tube. Thesepipes are arranged in such a way that it is not easy to drill a holefrom the outer opaque cover to the inside of the tube without passingthrough at least one fiber optic light guide. The ends of each fiberlight guide are coated with a metallic film so that light that isinjected in the other end of the fiber will reflect back to the source.The non-coated end of the fiber is brought to the end of the tubeassembly where it is inserted in the alcohol detection module 220. Inthis way, light emitting diodes (LEDs) can inject light into each fiberand the amount of light reflected back may be measured determining ifsomeone has tampered with the tube by drilling a hole into the tube anddisrupting the light reflectance of one of the fibers. Inside the ringof fiber optic light guides is another fiber optic strand used to imagethe inside of the user's mouth. The pipe extends the length of the tubeand is fitted with a lens at each end to allow a camera in the alcoholdetection module 220 to receive an image from the other end of the tubeinserted in the user's mouth. Finally, the tube assembly contains ahollow tube extending the length of the tube assembly to allow theuser's breath to be sampled by the alcohol detection module 220.

FIG. 4 is an exemplary flow chart 400 for using a mobile alcoholdetection device. In step 402, the device indicates to the user that atest is required. The device may provide an indication through anauditory or visual alarm or alert. The device may provide a set amountof time in which the user must complete the test. In some instances, thedevice may instruct or require a user to acknowledge the alarm or alertthrough means such as pressing a button or providing another responsethrough the user interface.

In step 404, the device exposes the sample collection device to theuser. This may occur by the device exposing an opening through which itwill absorb the user's breath sample. The device exposes the samplecollection device 270 to the user. This may occur by the device loadinga new collection tube into the sampling sensor and then exposing it tothe user through an opening in the device. Alternately, the device maypresent the user with the collection tube through an opening and theuser will be required to insert the tube in the sample collectionsensor, similar to inserting a straw into opening in the device. Thedevice may also include a locking mechanism or electromechanical latchto prevent insertion of the sample collection device 270 until the useris notified to conduct the test. The device may absorb the breath sampledirectly, or through a tube, such as the one illustrated in FIG. 3.

In step 406, the user inserts a sample collection tube into the device.The tube may be inserted so that it is properly aligned with the cameraand any other tamper features included in the device.

In step 408, the user blows into the sample collection device, thusproviding a breath sample to the alcohol detection module.

At or near the same time as step 408, in step 410, the camera capturesan image of the inside of the user's mouth.

In step 412, the alcohol detection module analyzes the breath sample andthe device analyzes the image of the user's mouth that was captured bythe camera. If the image, or certain features of the image, does notmatch the stored for the designated user, the device may trigger a localalert or a remote alert indicating tamper.

If the alcohol detection module detects indications of alcohol in thebreath sample, the device may also trigger a local alert or a remotealert. The alert may be indicative of violation of parole or otheralcohol-related restrictions the user is subject to. If an alcohol alertis triggered, the user may be required to go to a location where theymust complete a verifying alcohol test.

FIG. 5 is an exemplary flow chart 500 for detecting tamper with areflective tube. In step 502, the device emits light on the film layerof the collection tube. The light emitted may be from an LED or similarlight emitting device, such as a laser, and may be in the visible,infrared (IR), or ultraviolet (UV) spectrum. The light may be directedthrough a lens (e.g., concave or convex) or other focusing/magnifyingmechanism into the tube's fiber optic light guides. In step 504, thedevice detects returned light reflected back from the end of each fiberoptic light guide. In step 506, the device monitors for a tamper event.A tamper event may include drilling through the side wall of the tubeassembly disrupting the ability of a particular fiber optic light guideto reflect light off the metallized end.

The techniques of this disclosure may be implemented in a wide varietyof computer devices, such as servers, laptop computers, desktopcomputers, notebook computers, tablet computers, hand-held computers,smart phones, and the like. Any components, modules or units have beendescribed to emphasize functional aspects and do not necessarily requirerealization by different hardware units. The techniques described hereinmay also be implemented in hardware, software, firmware, or anycombination thereof. Any features described as modules, units orcomponents may be implemented together in an integrated logic device orseparately as discrete but interoperable logic devices. In some cases,various features may be implemented as an integrated circuit device,such as an integrated circuit chip or chipset. Additionally, although anumber of distinct modules have been described throughout thisdescription, many of which perform unique functions, all the functionsof all of the modules may be combined into a single module, or evensplit into further additional modules. The modules described herein areonly exemplary and have been described as such for better ease ofunderstanding.

If implemented in software, the techniques may be realized at least inpart by a computer-readable medium comprising instructions that, whenexecuted in a processor, performs one or more of the methods describedabove. The computer-readable medium may comprise a tangiblecomputer-readable storage medium and may form part of a computer programproduct, which may include packaging materials. The computer-readablestorage medium may comprise random access memory (RAM) such assynchronous dynamic random access memory (SDRAM), read-only memory(ROM), non-volatile random access memory (NVRAM), electrically erasableprogrammable read-only memory (EEPROM), FLASH memory, magnetic oroptical data storage media, and the like. The computer-readable storagemedium may also comprise a non-volatile storage device, such as ahard-disk, magnetic tape, a compact disk (CD), digital versatile disk(DVD), Blu-ray disk, holographic data storage media, or othernon-volatile storage device.

The term “processor,” as used herein may refer to any of the foregoingstructure or any other structure suitable for implementation of thetechniques described herein. In addition, in some aspects, thefunctionality described herein may be provided within dedicated softwaremodules or hardware modules configured for performing the techniques ofthis disclosure. Even if implemented in software, the techniques may usehardware such as a processor to execute the software, and a memory tostore the software. In any such cases, the computers described hereinmay define a specific machine that is capable of executing the specificfunctions described herein. Also, the techniques could be fullyimplemented in one or more circuits or logic elements, which could alsobe considered a processor.

Variations on the present disclosure will be apparent to one of skill inthe art upon reading the present disclosure, and are intended to beincluded within the scope of the present disclosure. For example, avariety of electronic components may be used as within the device. Avariety of films and constructions for the tube may also be usedconsistent with the present invention.

What is claimed is:
 1. A body-worn alcohol detection device comprising:a housing comprising an electronics module and an alcohol detectionmodule; a strap for securing the housing to a limb of a user; whereinthe electronics module includes a processor, a communication module anda biometric camera for capturing an image of the inside of the user'smouth; wherein the alcohol detection module includes an alcoholdetection sensor and a sample collection device; and wherein the alcoholdetection device further comprises a reflective tube to ensure acontinuous connection between the user's mouth and the alcohol detectiondevice; wherein the reflective tube includes several layers including anexterior layer, a film layer and an interior layer enclosing a hollowchannel; wherein the film layer comprises multiple fiber optic lightguide pipes running parallel to a length of the reflective tube andarranged in a circular array around the hollow channel.
 2. The device ofclaim 1, wherein the strap comprises a tamper detection feature.
 3. Thedevice of claim 1, wherein the electronics module further includes alocation module.
 4. The device of claim 1, wherein the electronicsmodule further includes a rechargeable battery.
 5. The device of claim1, wherein the alcohol detection device is configured to transmit thecaptured image to a remote processing device for comparing with areference image to confirm the identity of the user.
 6. The device ofclaim 1, wherein the alcohol detection device is configured to comparethe captured image with the reference image by a comparative model ofthe alcohol detection device.
 7. The device of claim 1, wherein thealcohol collection device further comprises a user interface to alertthe user to provide a sample to the sample collection device.
 8. Thedevice of claim 1, including a remote processing device that alerts auser through at least one of the following communication means: SMSmessage, telephone, or email, to provide a sample to the samplecollection device.
 9. The device of claim 1, wherein the communicationmodule is configured to report results from the alcohol detection sensorto a remote processing device or a designated monitoring officer. 10.The device of claim 1, wherein the device further comprises an exteriorcamera and wherein the exterior camera is positioned to take a pictureof at least a portion of the user's face.
 11. The device of claim 1,wherein the alcohol detection module is configured to measure thetemperature of the sample to confirm it coincides with the temperatureof exhaled breath.
 12. The device of claim 1, wherein the exterior layer303 comprises a protective covering made from an opaque material to hideinternal construction of the reflective tube.
 13. The device of claim 1,wherein the multiple fiber optic light guide pipes are arranged so thatat least one fiber optic light guide pipe will be damaged if drilling ahole from the exterior layer to the hollow channel.
 14. The device ofclaim 1, wherein ends of some fiber light guide pipes are coated with ametallic film so that light that is injected from a light source inanother end of the fiber light guide pipes will reflect back to thelight source to detect tampering.
 15. The device of claim 1, whereinsome fiber optic light guide pipes are fitted with a lens at each end toreceive an image of the user's mouth with the biometric camera.
 16. Amobile alcohol detection device comprising: a housing comprising anelectronics module and an alcohol detection module; wherein theelectronics module includes a communication module and a biometriccamera for capturing an image of the inside of a user's mouth; whereinthe alcohol detection module includes an alcohol detection sensor and asample collection device; and wherein the alcohol detection devicefurther comprises a reflective tube to ensure a continuous connectionbetween the user's mouth and the alcohol detection device; wherein thereflective tube includes several layers including an exterior layer, afilm layer and an interior layer enclosing a hollow channel; wherein thefilm layer comprises multiple fiber optic light guide pipes runningparallel to a length of the reflective tube and arranged in a circulararray around the hollow channel.
 17. The device of claim 16, wherein theelectronics module further includes a location module.
 18. The device ofclaim 16, wherein the electronics module further includes a rechargeablebattery.
 19. The device of claim 16, wherein the alcohol detectiondevice is configured to transmit the captured image to a remoteprocessing device for comparing with a reference image to confirm theidentity of the user.
 20. The device of claim 16, wherein the alcoholdetection device is configured to compare the captured image with thereference image by a comparative model of the alcohol detection device.21. The device of claim 16, wherein the alcohol detection device furthercomprises a user interface to alert the user to provide a sample to thesample collection device.
 22. The device of claim 16, including a remoteprocessing device that alerts a user through at least one of thefollowing communication means: SMS message, telephone, or email, toprovide a sample to the sample collection device.
 23. The device ofclaim 16, wherein the communication module is configured to reportresults from the alcohol detection sensor to a remote processing deviceor a designated monitoring officer.
 24. The device of claim 16, whereinthe device further comprises an exterior camera and wherein the exteriorcamera is positioned to take a picture of at least a portion of theuser's face.
 25. The device of claim 16, wherein the alcohol detectionmodule is configured to measure the temperature of the sample to confirmit coincides with the temperature of exhaled breath.
 26. The device ofclaim 16, wherein the device is handheld.